HEADER SIGNALING PROTEIN 25-MAR-15 4UHR TITLE THERMOSTABILISED HUMAN A2A RECEPTOR WITH CGS21680 BOUND COMPND MOL_ID: 1; COMPND 2 MOLECULE: THERMOSTABILISED HUMAN A2A RECEPTOR; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES; COMPND 6 OTHER_DETAILS: THE CONSTRUCT WAS TRUNCATED AFTER RESIDUE 316 OF THE COMPND 7 A2A SEQUENCE, BUT HAS AN 9 RESIDUE SEQUENCE THAT INCLUDES A LINKER COMPND 8 AND THE TEV CLEAVAGE SEQUENCE (AAAENLYFQ) AT THE C-TERMINUS SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 TISSUE: BRAIN; SOURCE 6 EXPRESSION_SYSTEM: TRICHOPLUSIA NI; SOURCE 7 EXPRESSION_SYSTEM_COMMON: CABBAGE LOOPER; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 7111; SOURCE 9 EXPRESSION_SYSTEM_CELL_LINE: HIGH FIVE; SOURCE 10 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS; SOURCE 11 EXPRESSION_SYSTEM_PLASMID: PBACPAK8 KEYWDS SIGNALING PROTEIN, SIGANLING PROTEIN, G PROTEIN COUPLED RECEPTOR, KEYWDS 2 SEVEN-HELIX RECEPTOR, INTEGRAL MEMBRANE PROTEIN, AGONIST BOUND FORM, KEYWDS 3 THERMOSTABILISING POINT MUTATIONS, GPCR, 7TM RECEPTOR EXPDTA X-RAY DIFFRACTION AUTHOR G.LEBON,P.C.EDWARDS,A.G.W.LESLIE,C.G.TATE REVDAT 5 13-NOV-24 4UHR 1 REMARK REVDAT 4 10-JAN-24 4UHR 1 REMARK REVDAT 3 03-APR-19 4UHR 1 SOURCE REVDAT 2 13-MAY-15 4UHR 1 JRNL REVDAT 1 08-APR-15 4UHR 0 JRNL AUTH G.LEBON,P.C.EDWARDS,A.G.W.LESLIE,C.G.TATE JRNL TITL MOLECULAR DETERMINANTS OF CGS21680 BINDING TO THE HUMAN JRNL TITL 2 ADENOSINE A2A RECEPTOR. JRNL REF MOL.PHARMACOL. V. 87 907 2015 JRNL REFN ISSN 0026-895X JRNL PMID 25762024 JRNL DOI 10.1124/MOL.114.097360 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.6.0117 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 64.98 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 94.8 REMARK 3 NUMBER OF REFLECTIONS : 12883 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.261 REMARK 3 R VALUE (WORKING SET) : 0.259 REMARK 3 FREE R VALUE : 0.312 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 679 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.60 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.67 REMARK 3 REFLECTION IN BIN (WORKING SET) : 914 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 96.42 REMARK 3 BIN R VALUE (WORKING SET) : 0.3220 REMARK 3 BIN FREE R VALUE SET COUNT : 55 REMARK 3 BIN FREE R VALUE : 0.3310 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2401 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 36 REMARK 3 SOLVENT ATOMS : 9 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 55.02 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.77000 REMARK 3 B22 (A**2) : 3.86000 REMARK 3 B33 (A**2) : -2.02000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.80000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.619 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.366 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.282 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 13.395 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.909 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.871 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2502 ; 0.006 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3412 ; 1.023 ; 1.967 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 307 ; 4.473 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 92 ;31.457 ;22.174 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 390 ;15.633 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 15 ;16.110 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 402 ; 0.070 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1839 ; 0.004 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS. REMARK 4 REMARK 4 4UHR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 25-MAR-15. REMARK 100 THE DEPOSITION ID IS D_1290063446. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-NOV-11 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID23-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.8726 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13563 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.600 REMARK 200 RESOLUTION RANGE LOW (A) : 45.340 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.900 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.1 REMARK 200 DATA REDUNDANCY : 3.400 REMARK 200 R MERGE (I) : 0.10000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.74 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.0 REMARK 200 DATA REDUNDANCY IN SHELL : 3.40 REMARK 200 R MERGE FOR SHELL (I) : 0.56000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 2YDO REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.06 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.05 M ACETATE-HCL (PH4.8), 6% REMARK 280 SUCROSE, 21.9% PENTHAETHYLENE GLYCOL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 29.59350 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A 1 REMARK 465 PRO A 2 REMARK 465 ILE A 3 REMARK 465 MET A 4 REMARK 465 GLY A 5 REMARK 465 HIS A 155 REMARK 465 SER A 156 REMARK 465 GLN A 157 REMARK 465 SER A 263 REMARK 465 GLU A 320 REMARK 465 ASN A 321 REMARK 465 LEU A 322 REMARK 465 TYR A 323 REMARK 465 PHE A 324 REMARK 465 GLN A 325 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LEU A 216 CG CD1 CD2 REMARK 470 GLU A 219 CG CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 PHE A 180 -63.39 -98.65 REMARK 500 GLN A 214 64.83 38.84 REMARK 500 ASP A 261 -89.79 -69.83 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NGI A 1320 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4UG2 RELATED DB: PDB REMARK 900 THERMOSTABILISED HUMAN A2A RECEPTOR WITH CGS21680 BOUND DBREF 4UHR A 1 317 UNP P29274 AA2AR_HUMAN 1 317 SEQADV 4UHR ALA A 318 UNP P29274 EXPRESSION TAG SEQADV 4UHR ALA A 319 UNP P29274 EXPRESSION TAG SEQADV 4UHR GLU A 320 UNP P29274 EXPRESSION TAG SEQADV 4UHR ASN A 321 UNP P29274 EXPRESSION TAG SEQADV 4UHR LEU A 322 UNP P29274 EXPRESSION TAG SEQADV 4UHR TYR A 323 UNP P29274 EXPRESSION TAG SEQADV 4UHR PHE A 324 UNP P29274 EXPRESSION TAG SEQADV 4UHR GLN A 325 UNP P29274 EXPRESSION TAG SEQADV 4UHR ALA A 48 UNP P29274 LEU 48 ENGINEERED MUTATION SEQADV 4UHR LEU A 54 UNP P29274 ALA 54 ENGINEERED MUTATION SEQADV 4UHR ALA A 65 UNP P29274 THR 65 ENGINEERED MUTATION SEQADV 4UHR ALA A 89 UNP P29274 GLN 89 ENGINEERED MUTATION SEQADV 4UHR ALA A 154 UNP P29274 ASN 154 ENGINEERED MUTATION SEQRES 1 A 325 MET PRO ILE MET GLY SER SER VAL TYR ILE THR VAL GLU SEQRES 2 A 325 LEU ALA ILE ALA VAL LEU ALA ILE LEU GLY ASN VAL LEU SEQRES 3 A 325 VAL CYS TRP ALA VAL TRP LEU ASN SER ASN LEU GLN ASN SEQRES 4 A 325 VAL THR ASN TYR PHE VAL VAL SER ALA ALA ALA ALA ASP SEQRES 5 A 325 ILE LEU VAL GLY VAL LEU ALA ILE PRO PHE ALA ILE ALA SEQRES 6 A 325 ILE SER THR GLY PHE CYS ALA ALA CYS HIS GLY CYS LEU SEQRES 7 A 325 PHE ILE ALA CYS PHE VAL LEU VAL LEU THR ALA SER SER SEQRES 8 A 325 ILE PHE SER LEU LEU ALA ILE ALA ILE ASP ARG TYR ILE SEQRES 9 A 325 ALA ILE ARG ILE PRO LEU ARG TYR ASN GLY LEU VAL THR SEQRES 10 A 325 GLY THR ARG ALA LYS GLY ILE ILE ALA ILE CYS TRP VAL SEQRES 11 A 325 LEU SER PHE ALA ILE GLY LEU THR PRO MET LEU GLY TRP SEQRES 12 A 325 ASN ASN CYS GLY GLN PRO LYS GLU GLY LYS ALA HIS SER SEQRES 13 A 325 GLN GLY CYS GLY GLU GLY GLN VAL ALA CYS LEU PHE GLU SEQRES 14 A 325 ASP VAL VAL PRO MET ASN TYR MET VAL TYR PHE ASN PHE SEQRES 15 A 325 PHE ALA CYS VAL LEU VAL PRO LEU LEU LEU MET LEU GLY SEQRES 16 A 325 VAL TYR LEU ARG ILE PHE LEU ALA ALA ARG ARG GLN LEU SEQRES 17 A 325 LYS GLN MET GLU SER GLN PRO LEU PRO GLY GLU ARG ALA SEQRES 18 A 325 ARG SER THR LEU GLN LYS GLU VAL HIS ALA ALA LYS SER SEQRES 19 A 325 LEU ALA ILE ILE VAL GLY LEU PHE ALA LEU CYS TRP LEU SEQRES 20 A 325 PRO LEU HIS ILE ILE ASN CYS PHE THR PHE PHE CYS PRO SEQRES 21 A 325 ASP CYS SER HIS ALA PRO LEU TRP LEU MET TYR LEU ALA SEQRES 22 A 325 ILE VAL LEU SER HIS THR ASN SER VAL VAL ASN PRO PHE SEQRES 23 A 325 ILE TYR ALA TYR ARG ILE ARG GLU PHE ARG GLN THR PHE SEQRES 24 A 325 ARG LYS ILE ILE ARG SER HIS VAL LEU ARG GLN GLN GLU SEQRES 25 A 325 PRO PHE LYS ALA ALA ALA ALA GLU ASN LEU TYR PHE GLN HET NGI A1320 36 HETNAM NGI 2-[P-(2-CARBOXYETHYL)PHENYLETHYL-AMINO]-5'-N- HETNAM 2 NGI ETHYLCARBOXAMIDO ADENOSINE FORMUL 2 NGI C23 H29 N7 O6 FORMUL 3 HOH *9(H2 O) HELIX 1 1 SER A 6 ASN A 34 1 29 HELIX 2 2 SER A 35 GLN A 38 5 4 HELIX 3 3 ASN A 39 LEU A 58 1 20 HELIX 4 4 LEU A 58 GLY A 69 1 12 HELIX 5 5 ALA A 73 ILE A 108 1 36 HELIX 6 6 ARG A 111 VAL A 116 1 6 HELIX 7 7 THR A 117 LEU A 137 1 21 HELIX 8 8 THR A 138 GLY A 142 5 5 HELIX 9 9 LYS A 150 ALA A 154 5 5 HELIX 10 10 LEU A 167 VAL A 172 1 6 HELIX 11 11 PRO A 173 PHE A 180 1 8 HELIX 12 12 PHE A 180 VAL A 186 1 7 HELIX 13 13 VAL A 186 SER A 213 1 28 HELIX 14 14 GLU A 219 CYS A 259 1 41 HELIX 15 15 PRO A 266 THR A 279 1 14 HELIX 16 16 THR A 279 ASN A 284 1 6 HELIX 17 17 PRO A 285 ILE A 292 1 8 HELIX 18 18 ILE A 292 GLU A 312 1 21 HELIX 19 19 PRO A 313 LYS A 315 5 3 SHEET 1 AA 2 CYS A 71 ALA A 72 0 SHEET 2 AA 2 VAL A 164 ALA A 165 -1 O VAL A 164 N ALA A 72 SSBOND 1 CYS A 71 CYS A 159 1555 1555 2.04 SSBOND 2 CYS A 74 CYS A 146 1555 1555 2.04 SSBOND 3 CYS A 77 CYS A 166 1555 1555 2.03 SSBOND 4 CYS A 259 CYS A 262 1555 1555 2.04 CISPEP 1 LEU A 216 PRO A 217 0 -2.95 CISPEP 2 ASN A 284 PRO A 285 0 4.69 SITE 1 AC1 16 VAL A 84 LEU A 85 THR A 88 PHE A 168 SITE 2 AC1 16 GLU A 169 MET A 177 ASN A 181 TRP A 246 SITE 3 AC1 16 LEU A 249 HIS A 250 ASN A 253 LEU A 267 SITE 4 AC1 16 MET A 270 ILE A 274 SER A 277 HIS A 278 CRYST1 60.407 59.187 65.058 90.00 92.83 90.00 P 1 21 1 2 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.016554 0.000000 0.000818 0.00000 SCALE2 0.000000 0.016896 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015390 0.00000